| … | |
… | |
| 141 | |
141 | |
| 142 | if (fd < -(ctx.c_far - ctx.z_far) -rad * 3.F) |
142 | if (fd < -(ctx.c_far - ctx.z_far) -rad * 3.F) |
| 143 | return false; |
143 | return false; |
| 144 | #endif |
144 | #endif |
| 145 | } |
145 | } |
| 146 | |
|
|
| 147 | #if 0 |
|
|
| 148 | if (vs.state == OCCLUDED && size ()) |
|
|
| 149 | { |
|
|
| 150 | if (size ()) |
|
|
| 151 | ctx.vislist.push_back (this); |
|
|
| 152 | return false; |
|
|
| 153 | } |
|
|
| 154 | #endif |
|
|
| 155 | |
146 | |
| 156 | // very important, optimize? |
147 | // very important, optimize? |
| 157 | GLfloat z = ctx.z_near + distance (ctx.frustum.n, centerf) + rad; |
148 | GLfloat z = ctx.z_near + distance (ctx.frustum.n, centerf) + rad; |
| 158 | if (ctx.perspfact * extent / z < 1.) // very crude "too small to see" check |
149 | if (ctx.perspfact * extent / z < 1.) // very crude "too small to see" check |
| 159 | return false; |
150 | return false; |
